THE TEACHING OF PHYSICS 49

 (3) Require brief but carefully and accurately
 written reports containing simple and
 analytic drawings when advisable.
 g. Use audio-visual aids such as slides, films, film
 strips, wall charts, radio programs, recordings,
 and flat pictures.
F. Vitalize laboratory work.


1. Provide activity for each member of the class.
2. Use laboratory guides properly.
 a. Precede experiments or any assignment by a thor-
 ough explanation of what pupils are about to do.
 (1) Use challenging questions.
 (2) Determine what tables, sketches, or write-
 ups will make experiment more clear.
 (3) Have careful plans worked out for best
 presentation of experiment using either
 individual method, demonstrations, or
 problem project method.
 (4) See that pupils are stimulated to self activ-
 ity which will result in a feeling of accom-
 plishment and satisfaction.
3. Have proper materials on hand making sure they
 are easily accessible, in perfect repair. When expen-
 sive equipment is not available, encourage conversion
 of home and "junk yard" materials.
4. Be available at all times during laboratory periods to
 anticipate difficulties and give helpful suggestions.
5. Follow up experiments by varied methods of evalua-
 tion.
 a. Have students draw up conclusions and make
 practical application of experiment using oral
 or written method.
 b. Ask problem type questions which will involve
 the use of the principles learned by mastery of
 the experiment.
6. Give every opportunity for full training in habits of
 neatness, orderliness, resourcefulness and respon-